Gremlin is a Chaos Engineering Platform designed to test application and infrastructure resilience to unexpected failures. To trigger a chaos engineering attack after a deployment, users need a Gremlin account, Humanitec account, and prerequisites such as installing Gremlin on the Kubernetes cluster running their Humanitec applications. Users can explore options for running attacks in the Gremlin UI or via the Gremlin API by constructing the required payload. They must obtain a Bearer token to authenticate requests to the Gremlin API and create a webhook in Humanitec to point to the Gremlin API with a custom payload, which is then fired once every deployment has completed.